Check valve in auxiliary vacuum system

作者： Dennis C. Eckhardt

DOI:

关键词: Control engineering 、 Rotolock valve 、 Materials science 、 Check valve 、 Butterfly valve 、 Relief valve 、 Needle valve 、 Vacuum pump 、 Mechanical engineering 、 Ball valve 、 Valve guide

摘要: A check valve for disposition between a vacuum operated device and the intake of an auxiliary pump automobile which discharges into crankcase engine vehicle. The includes elastomeric umbrella having flexible lip is self-biased to closed position preventing backflow air flexed normal open by pressure difference corresponding operation with integrity system intact. larger breached flexes control wherein airflow restricted only orifice flow area predetermined limit less than rate at scavenged from engine.